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Business Number: 898451794 Mailing Address: Delivery Mode: GeneralDelivery Address Line 1: 17 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Facility Name: Orangeville Plasticizer NAICS Code: 326198 NPRI ID: 2277 Physical Address: Address Line 1: 15 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Latitude: 43.9133 Longitude: ­80.1158 Contact Type Technical Contact, Company Coordinator, Public Contact, Person who coordinated the preparation of the Toxics Reduction Plan Name: Brian Greer Position: EHS Manager Telephone: 5192150535 Email: brian.greer@polyone.com Contact Type Certifying Official Name: Darryl Chartrand Position: Senior Air Quality Technologist Telephone: 4164999000 about:/V003/Html http://www.canada.gc.ca/home.html http://www.servicecanada.gc.ca/eng/home.shtml http://www.canada.gc.ca/aboutgov-ausujetgouv/depts/menu-eng.html https://ec.ss.ec.gc.ca/auth/en/Services about:/V003/Logout_Deconnexion http://ec.gc.ca/default.asp? lang=En&n=FD9B0E51-1 https://ec.ss.ec.gc.ca/auth/en/Services General Information Substance List CAS RN Substance Name Releases Releases (Speciated VOCs) Disposals Recycling Unit 103­23­1 Bis(2­ethylhexyl) adipate 0.0000 N/A N/A N/A tonnes 117­81­7 Bis(2­ethylhexyl) phthalate 0.0001 N/A N/A N/A tonnes 85­44­9 Phthalic anhydride N/A N/A N/A N/A tonnes Extension 73642 Fax: 4164994687 Email: darryl.chartrand@ch2m.com Contact Type Highest Ranking Employee Name: Robert Greenop Position: Plant Manager Telephone: 5199385865 Email: robert.greenop@polyone.com Mailing Address: Address Line 1:  City, Province/Territory, Postal Code: None  Country: None Contact Type Person who prepared the report Name: Najat Kamal Position: EHSQ specialist Telephone: 5148089920 Email: najat.kamal@polyone.com Mailing Address: Delivery Mode: GeneralDelivery Address Line 1:  City, Province/Territory, Postal Code: None  Country: None Number of employees: 16 Activities for Which the 20,000­Hour Employee Threshold Does Not Apply: None of the above Activities Relevant to Reporting Dioxins, Furans and Hexacholorobenzene: None of the above Activities Relevant to Reporting of Polycyclic Aromatic Hydrocarbons (PAHs): Wood preservation using creosote: No Is this the first time the facility is reporting to the NPRI (under current or past ownership): Is the facility controlled by another Canadian company or companies: Did the facility report under other environmental regulations or permits: Is the facility required to report one or more NPRI Part 4 substances (Criteria Air Contaminants): Operating Schedule ­ Days of the Week: Mon, Tue, Wed, Thu, Fri Usual Number of Operating Hours per day: 24 Usual Daily Start Time (24h) (hh:mm): 07:00 CAS RN Substance Name Releases Releases (Speciated VOCs) Disposals Recycling Unit Applicable Programs CAS RN Substance Name NPRI ON MOE TRA ON MOE Reg 127/01 First report for  this substance to  the ON MOE TRA 103­23­1 Bis(2­ethylhexyl) adipate Yes Yes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Yes Yes No 85­44­9 Phthalic anhydride Yes Yes No General Information about the Substance ­ Releases and Transfers of the Substance Was the substance released on­site The substance will be reported as the sum of releases to all media (total of 1 tonne or less) 1 tonne or more of a Part 5 Substance (Speciated VOC) was released to air Yes Yes No Yes Yes No General Information about the Substance ­ Disposals and Off­site Transfers for Recycling Was the substance disposed of (on­site or off­ site), or transferred for treatment prior to final disposal Is the facility required to report on disposals of tailings and waste rock for the selected reporting Was the substance transferred off­site for recycling General Information about the Substance ­ Nature of Activities CAS RN Substance Name Manufacture the Substance Process the Substance Otherwise Use of the Substance 103­23­1 Bis(2­ethylhexyl) adipate For sale/distribution As a formulation component As a by­product 117­81­7 Bis(2­ethylhexyl) phthalate For sale/distribution As a formulation component As a by­product 85­44­9 Phthalic anhydride As a by­product As a reactant As a by­product TRA Quantifications CAS RN Substance Name Use, Creation, Contained in Product Quantity Use ranges for public reporting 103­23­1 Bis(2­ethylhexyl) adipate Use 0.000 tonnes Yes 103­23­1 Bis(2­ethylhexyl) adipate Creation 27.159 tonnes Yes 103­23­1 Bis(2­ethylhexyl) adipate Contained in Product 27.159 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Use 0.000 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Creation 0.104 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Contained in Product 0.104 tonnes Yes 85­44­9 Phthalic anhydride Use 4228.7 tonnes Yes 85­44­9 Phthalic anhydride Creation 0.000 tonnes Yes 85­44­9 Phthalic anhydride Contained in Product 4228.7 tonnes Yes TRA Quantifications ­ Others Change in Method of Quantification Reasons for Description of how the change impact tracking and quantification of the substance Description of how an incident(s) affected quantifications Significant Process Change in Method of Quantification Reasons for Description of how the change impact tracking and quantification of the substance Description of how an incident(s) affected quantifications Significant Process Total Quantity Released (All Media) CAS RN Substance Name Category Basis of Estimate Detail Code Quantity 103­23­1 Bis(2­ethylhexyl) adipate Total Quantity Released O ­ Engineering Estimates 0.0000 tonnes 117­81­7 Bis(2­ethylhexyl) phthalate Total Quantity Released O ­ Engineering Estimates 0.0001 tonnes On­site Releases ­ Quarterly Breakdown of Annual Releases CAS RN Substance Name Quarter 1 Quarter 2 Quarter 3 Quarter 4 117­81­7 Bis(2­ethylhexyl) phthalate 25 25 25 25 On­site Releases ­ Reasons for Changes in Quantities Released from Previous Year CAS RN Substance Name Reasons for Changes in Quantities from Previous Year Comments 117­81­7 Bis(2­ethylhexyl) phthalate No significant change (i.e. 

To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 4774915. To listen to this recording, dial 1-855-859- 2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 4774915. They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

+358 (0)29 509 5000 registry@prh.fi Page: 1 (2) Business ID: 2046676-4 Date and time of creating the document: 01.12.2020 08:37:55 TRANSLATION OF THE EXTRACT FROM THE TRADE REGISTER, ELECTRONIC 01.12.2020 08:37:54 the details in the register Identifiers Name Avient Finland Oy Business ID 2046676-4 Entered in the register 31.03.2007 Company type Limited company Contact details: Postal address Äyritie 8 E 01510 Vantaa Street address Äyritie 8 E 01510 Vantaa Email tina.ahlquist@clariant.com Telephone 0106808500 Fax 0106808509 Name details Name Avient Finland Oy Auxiliary company name Drycolor Registered office Vantaa Share capital Share capital 169.000,00 € Number of shares 1 000 pcs Nominal value of a share 169,00 € Financial period Financial period 01.01 - 31.12 Financial statements The last financial statements submitted 01.01.2019 - 31.12.2019 Representation Page: 2 (2) Business ID: 2046676-4 Statutory representation: Under the law, the Board of Directors represents the company.

Enlarge or widen vents and increase number of vents 2. Clean, widen and increase number of vents 2.

• Vents should be placed at the intersection of each 90° bend in the runner system off of the cold slug well and vented to atmosphere PROBLEM CAUSE SOLUTION Black Specks Contamination • Purge barrel with general purpose PP • Verify correct nozzle is being used • Pull screw for cleaning Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Decrease injection speed • Use appropriately sized barrel Brittleness Degraded/overheated material • Decrease melt temperature • Decrease back pressure • Decrease injection speed • Use appropriately sized barrel Gate location and/or size • Relocate gate to nonstress area • Increase gate size to allow higher flow rate and lower molded-in stress Burning Process related • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection rate Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Fibers/Minerals on Surface or Uneven Surface Appearance Melt temperature too low • Increase melt temperature • Increase mold temperature • Increase injection speed Insufficient packing • Increase hold pressure and time • Increase shot size Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Decrease injection rate • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size • Decrease injection rate Melt and/or mold too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed Loose clamp • Reset mold height • Increase clamp tonnage Troubleshooting Recommendations PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold too cold • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection rate Mold design • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line Shot size • Adjust transfer position to 98% full • Increase shot size Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression Shrink Too much shrink • Increase cooling time • Decrease mold temperature Too little shrink • Decrease cooling time • Increase mold temperature Sink Marks Part geometry too thick • Reduce wall thickness • Reduce rib thickness Melt too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Insufficient material volume • Adjust transfer position • Increase shot size • Increase injection rate • Increase packing pressure Troubleshooting Recommendations (continued) PROBLEM CAUSE SOLUTION Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Part is too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time Warp Process related • Increase cooling time • Increase melt temperature • Increase pack pressure • Increase pack time • Decrease mold temperature Mold design • Inspect for non-uniform mold cooling Part design • Inspect for non-uniform wall thickness Temperature control unit incorrect temperature • Check settings • Inspect thermocouple Weld Lines Melt front temperatures are too low • Increase pack and hold pressure • Increase melt temperature • Increase injection rate • Increase mold temperature Mold design • Increase gate size • Perform short shots to determine fill pattern and verify proper vent location • Add vents and/or false ejector pin • Move gate location 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.